242240224 has 12 divisors (see below), whose sum is σ = 476910504. Its totient is φ = 121120096.

The previous prime is 242240213. The next prime is 242240227. The reversal of 242240224 is 422042242.

It is a happy number.

It is a super-2 number, since 2×242240224² = 117360652247140352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242240195 and 242240204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242240227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3784972 + ... + 3785035.

It is an arithmetic number, because the mean of its divisors is an integer number (39742542).

Almost surely, 2^242240224 is an apocalyptic number.

It is an amenable number.

242240224 is a deficient number, since it is larger than the sum of its proper divisors (234670280).

242240224 is an equidigital number, since it uses as much as digits as its factorization.

242240224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7570017 (or 7570009 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 242240224 is about 15564.0683627386. The cubic root of 242240224 is about 623.3740984584.

Adding to 242240224 its reverse (422042242), we get a palindrome (664282466).

The spelling of 242240224 in words is "two hundred forty-two million, two hundred forty thousand, two hundred twenty-four".